BACKGROUNDPhotoselective vaporization of the prostate is a technique that is widely used for the treatment of benign prostatic hyperplasia (BPH) and has pronounced advantages compared to the traditional transurethral resection of the prostate. Following the recent introduction of end-firing lithium triborate lasers, we have created a new technique called photoselective vaporesection of the prostate (PVRP). This study described our initial experience using the PVRP technique for the treatment of BPH.

METHODSThis prospective study included a total of 35 patients with BPH who underwent PVRP from August 2013 to July 2014. The chief clinical parameters were obtained and evaluated during the perioperative period and follow-up, including the International Prostate Symptom Score (IPSS), quality of life (QoL) score, maximum urinary flow rate, and prostate volume. All variables were evaluated for statistically significant differences compared to baseline values using the analysis of variance.

RESULTSThe mean subgroup IPSS and QoL scores significantly improved during follow-up; the respective decreases in IPSS storage score, IPSS voiding score, IPSS nocturia score, and QoL score were 75.3%, 83.6%, 51.4%, and 71.7%, respectively (all P < 0.001 compared with baseline). Three patients were diagnosed with prostate cancer based on postoperative pathological examinations. There were no serious perioperative complications.

CONCLUSIONThe PVRP technique demonstrates satisfactory short-term clinical outcomes and perioperative safety in the treatment of BPH.

Aged ; Aged, 80 and over ; Borates ; therapeutic use ; Humans ; Laser Therapy ; methods ; Lithium Compounds ; therapeutic use ; Male ; Middle Aged ; Perioperative Period ; Postoperative Complications ; Prospective Studies ; Prostate ; surgery ; Prostatic Hyperplasia ; surgery ; Treatment Outcome

OBJECTIVETo characterize the property of uricase loaded in uricase-catalase liposomes (BUCLPs) prepared using borate buffer.

METHODSBUCLPs were prepared using reverse-phase evaporation, and the physicochemical properties of uricase in the prepared BUCLPs were examined.

RESULTSThe optimal temperature of BUCLP and URI was 40 degrees celsius, their optimal pH values were 8.0 and 8.5, and their Michaelis-Menten constants were 14.207 µmol/L and 13.623 µmol/L, respectively. Fluorescence intensity of nanoliposome-loaded uricase-catalase that bound to FITC was higher than that of uricase-catalase binding directly with FITC; the fluorescence intensity of BUCLP was higher than that of free uricase-catalase at 280 nm.

CONCLUSIONUricase activity is enhanced after loading in uricase and catalase liposomes.

Borates ; Catalase ; Liposomes ; Nanoparticles ; chemistry ; Temperature ; Urate Oxidase ; chemistry

OBJECTIVES: The aim of this study was to determine an appropriate application duration of sodium ascorbate (SA) antioxidant gel in reducing microleakage of bonded composite restoration in intracoronally-bleached teeth. MATERIALS AND METHODS: Eighty endodontically-treated human incisors were randomly divided into eight groups: control, no bleaching; IB and DB, immediate and delayed bonding after bleaching, respectively; S10m, S60m, S24h, S3d and S7d, bleaching + SA gel for 10 min, 60 min, 24 hr, 3 day and 7 day, respectively. For bleaching, a mixture of 30% hydrogen peroxide and sodium perborate was applied for 7 day. All access cavities were restored using One-Step adhesive (Bisco Inc.) and then Aelite LS Packable composite (Bisco Inc.). The bonded specimens were subjected to 500 thermal cycles, immersed in 1% methylene blue for 8 hr, and longitudinally sectioned. Microleakage was assessed with a 0 - 4 scoring system and analyzed using nonparametric statistical methods (alpha = 0.05). RESULTS: Group IB showed a significantly higher microleakge than the control group (p = 0.006) and group DB a statistically similar score to the control group (p > 0.999). Although groups S10m, S60m, and S24h exhibited significantly higher scores than group DB (p < 0.05), the microleakage in groups S3d and S7d was statistically similar to that in group DB (p = 0.771, p > 0.999). CONCLUSIONS: Application of SA gel for 3 day after nonvital bleaching was effective in reducing microleakage of composite restoration in intracoronally-bleached teeth.
Adhesives ; Ascorbic Acid ; Borates ; Composite Resins ; Humans ; Hydrogen Peroxide ; Incisor ; Methylene Blue ; Sodium ; Tooth

PURPOSE: This study was aimed to determine the effect of two chemically distinct denture cleansers and water on the surface hardness of acrylic and silicone based soft denture liners at various time intervals. MATERIALS AND METHODS: Two commonly used commercial resilient liner material were selected based on their chemical composition (silicone- and acrylic-based soft liners) for this investigation. 120 cylindrical specimens were made of 15 mm x 10 mm dimensions (according to ASTM: D-2240-64T) in a custom made metal mold. All specimens were stored in artificial saliva throughout the study. Forty specimens were cleansed daily in 0.5% sodium hypochlorite solution; forty were cleansed in sodium perborate and remaining forty specimens were daily rinsed in water. Testing was done at 1 week, 1 month, 3 months and 6 months for surface hardness using a Shore A Durometer. A mean of 3 reading for each sample was subjected to one-way ANOVA, Post Hoc test and pair-t test for statistical analysis. P values of less than 0.05 were taken as statistically significant. RESULTS: Surface hardness of all the samples was significantly higher after a period of 6 months irrespective of the cleansing treatment. Minor changes were observed between control, sodium hypochlorite and sodium perborate groups with time. Greater change was observed in surface hardness of acrylic-based soft denture liners as compared to silicone-based soft liners for all groups, as time progressed. CONCLUSION: Silicone-based soft denture liners performed significantly better in all cleansing treatments than acrylic-based soft denture liners.
Borates ; Denture Cleansers ; Denture Liners ; Dentures ; Fungi ; Hardness ; Saliva, Artificial ; Silicones ; Sodium ; Sodium Hypochlorite ; Water

OBJECTIVETo study MIC value of 7 boron derivatives namely [Boric acid (H(3)BO(3)), Anhydrous Borax (Na(2)B(4)O(7)), Sodium Borate (NaBO(2)), Diammonium Tetraborate (NH(4))(2)B(4)O(7), Sodium Perborate (NaBO(3)), Boron Trioxide (B(2)O(3)), Potassium Tetraborate (K(2)B(4)O(7))] on E. coli and P. aeruginosa and their effects on survival of bacteria in lake water and resistance against kanamycin antibiotic.

METHODSMIC values of Boron derivatives and antibiotic were studied by broth microdilution method. The effect of boron derivatives on survival of bacteria in lake water were also determined with plate count.

RESULTSSodium perborate was determined as the most effective substance among the studied substances. Effectiveness increased as temperature increased. E. coli was more affected from P. aeruginosa in 8 mg/mL sodium perborate concentration in lake water. Moreover, it was determined that MIC value of kanamycin antibiotic decreased 200 times by especially treating P. aeruginosa with sodium perborate in lake water. However, it can be stated that this change in resistance did not arise from microorganisms.

CONCLUSIONSodium perborate solution can be used supportedly in kanamycin antibiotic applications for P. aeruginosa. Future studies are necessary to explore the relation between sodium perborate and kanamycin which is effective on P. aeruginosa in lake water.

Borates ; pharmacology ; Escherichia coli ; drug effects ; Kanamycin Resistance ; Lakes ; microbiology ; Microbial Sensitivity Tests ; Pseudomonas aeruginosa ; drug effects

Bladder neck incision or transurethral incision of the prostate is a procedure described for men with bladder outflow obstruction associated with a gland size of less than 30 ml. We report a case of a man with detrusor dysfunction who was having increasing difficulty performing clean intermittent self-catheterization of the bladder. The successful use of the 120 W lithium triborate laser to perform a "mini-photoselective vaporization of the prostate" ("mini-PVP") enabled discharge of the patient on the same day as well as resolution of the patient's difficulties in performing self-catheterization. Mini-PVP has proven to be a simple and effective approach to resolution of a prostate configuration impeding the process of clean intermittent self-catheterization.
Borates ; Humans ; Intermittent Urethral Catheterization ; Lithium ; Lithium Compounds ; Male ; Neck ; Prostate ; Prostatectomy ; Transurethral Resection of Prostate ; Urinary Bladder ; Volatilization

OBJECTIVETo discuss the influence of nano-silica content which was hydrolyzed by tetraethyl orthosioate (TEOS) on the aluminum borate whisker (AlBw) and silica filler composite resins on flexural properties.

METHODSThe nanometer-size silicon dioxide (SiO2) particles were prepared by sol-gel method based on tetraethyl orthosioate. Different proportion of AlBw and SiO2 were fused and attached onto the surface of AlBw through high temperature, then polymerized with resin matrix after surface siliconization and their flexural strength and flexural modulus were determined. The effects of heat treatment to the surface morphology of AlBw and the shapes of the mixture at various proportions were characterized by TEM.

RESULTSThe flexural properties of dental composite resins with AlBw-SiO2 compound as inorganic fillers were significantly improved. The flexural property of a new type of dental composite resins was(130.29 +/- 8.38) MPa, when the mass ratio of AlBw and nano-SiO2 particle was 3:1.

CONCLUSIONNano-silica content which was hydrolyzed by tetraethyl orthosioate improved flexural properties of the aluminum borate whisker and silica filler composite resins.

Acrylic Resins ; Aluminum ; Animals ; Borates ; Composite Resins ; Materials Testing ; Pliability ; Polyurethanes ; Silanes ; Silicon Dioxide ; Vibrissae

OBJECTIVETo investigate mRNA and protein expressions of OPGL and M-CSF mRNA in bones of rats with experimental fluorosis induced by intake of fluoride in the drinking water, and to study the antagonizing effects of Danlan Xianpeng Liaofu capsules on the gene expression.

METHODSTotally 72 SD rats were randomly assorted into 6 groups including the control group, the fluoride group, the high-dosage (0.8 g/kg×d), mid-dosage (0.4 g/kg×d) and low dosage (0.2 g/kg×d) medication groups and the borax group (borax, 0.8 g/kg×d). The distribution of female and male rats in each group was divided up on a fifty-fifty basis. Except the control group, a NaF containing water (NaF 50 mg/L in concentration) was supplied as the drinking water for all the experimental rats in order to establish experimental fluorosis. The thickness and density of trabecula and the thickness of bone cortex were measured by light microscopy. The fluoride content in urine and bone were analyzed by using fluoride ion selective electrode method. Expressions of OPGL and M-CSF mRNA and protein were studied using RT-PCR and immuno-histochemistry, respectively.

RESULTS(1) 10/12 of the experimental fluorosis rats developed dental fluorosis, and 2/12 of dental fluorosis rats occurred in the low-dosage medication group. Fluoride content in urine and bone of the fluorosis rats increased (P<0.05). (2) Compared with that of the control rats, the bone trabecular depth, cortical thickness and trabecular density in experimental fluorosis rats were remarkably reduced. (3) Compared with that of the control group, mRNA expression of both OPGL and M-CSF was increased in the fluoride group rats. The difference was statistically significant (P<0.05). (4) Compared with that of the fluoride group animals, the expression intensity of OPGL mRNA decreased in animals of the control group, the high, mid- and low- dosage medication groups and the borax group. Among them, except the low-dosage group, the difference between all the other groups and the fluoride group was statistically significant, respectively (P<0.05). There was also a decrease of M-CSF mRNA in all the 3 medication groups and the borax group animals in comparing with that of the fluoride group and the difference was also statistically significant (P<0.05), respectively. (5) Compared with that of the control group. There were an increase of OPGL and a decrease of M-CSF protein expression; and in addition, there were a decrease of OPGL and an increase of M-CSF protein expression in all 3 medication groups and the borax group in comparing with that of the fluoride group anima (P < 0.05).

CONCLUSIONSExcessive fluoride induces an accelerated bone turnover and may promote the absorption activity of osteoclasts by increasing the expression of OPGL and M-CSF. Danlan Xianpeng Liaofu capsule may be capable of regulating bone remodeling through a down-regulation on OPGL and M-CSF expression.

Animals ; Bone Density ; drug effects ; Bone Remodeling ; drug effects ; Bone and Bones ; metabolism ; pathology ; Borates ; pharmacology ; Capsules ; Dose-Response Relationship, Drug ; Drugs, Chinese Herbal ; administration & dosage ; pharmacology ; Female ; Fluorides ; metabolism ; urine ; Fluorosis, Dental ; metabolism ; pathology ; Macrophage Colony-Stimulating Factor ; genetics ; metabolism ; Male ; RANK Ligand ; genetics ; metabolism ; RNA, Messenger ; metabolism ; Random Allocation ; Rats ; Rats, Sprague-Dawley ; Sodium Fluoride ; poisoning

OBJECTIVETo develop a high performance capillary electrophoresis method for Citrus aurantium fingerprints to control its quality.

METHODThe background electrolyte (BGE) was an 80 mmol x L(-1) boric acid solution containing 15 mmol x L(-1) borate. The pH of the BGE was adjusted to 9.70 with KOH solution. The detection wavelength was 201 nm and a voltage of 16 kV was applied. The sample hydrodynamic injection was 0.4 ps with a duration time of 8 sec. C. aurantium was extracted by water and a set of capillary electrophoresis fingerprints (CEFP) containing 12 co-possessing peaks was obtained.

RESULTThere were good similarities between the standard CEFP and each set of CEFP of C. aurantium collected from eleven different places, and their similarity coefficients were between 0.973 and 0.996.

CONCLUSIONThe CEFP has acceptable precision, reproducibility and stability and can be used for the quality control of C. aurantium.

Borates ; chemistry ; Citrus ; chemistry ; Electrolytes ; chemistry ; Electrophoresis, Capillary ; methods ; Hydrogen-Ion Concentration ; Temperature

A cross-sectional study on actual situation of using of borax and colour additive in 390 traditional food samples (Lean pork paste, roast pork, fermented pork roll, noodles, green rice flake cake, pyramidal rice dumpling) has been conducted in Ha Tay province during 2002-2003. The results have shown that 95.2% of lean pork paste sample, 79.3% of fermented pork roll, 10.9% of noodles, 60.0% of cake samples were found with borax-an unpermitted chemical in food. Color additive was found in almost examined samples
Food ; Borates ; Epidemiology